#include <stdio.h> #include <errno.h> #include <sys/ipc.h> #include <sys/msg.h> #include <sys/sem.h> #include <sys/shm.h> #include <sys/select.h> #include <sys/types.h> #include <sys/mount.h> #include <sys/mman.h> #include <unistd.h> #include "qemu.h" int do_strace=0; struct syscallname { int nr; const char *name; const char *format; void (*call)(const struct syscallname *, abi_long, abi_long, abi_long, abi_long, abi_long, abi_long); void (*result)(const struct syscallname *, abi_long); }; #ifdef __GNUC__ /* * It is possible that target doesn't have syscall that uses * following flags but we don't want the compiler to warn * us about them being unused. Same applies to utility print * functions. It is ok to keep them while not used. */ #define UNUSED __attribute__ ((unused)) #else #define UNUSED #endif /* * Structure used to translate flag values into strings. This is * similar that is in the actual strace tool. */ struct flags { abi_long f_value; /* flag */ const char *f_string; /* stringified flag */ }; /* common flags for all architectures */ #define FLAG_GENERIC(name) { name, #name } /* target specific flags (syscall_defs.h has TARGET_<flag>) */ #define FLAG_TARGET(name) { TARGET_ ## name, #name } /* end of flags array */ #define FLAG_END { 0, NULL } UNUSED static const char *get_comma(int); UNUSED static void print_pointer(abi_long, int); UNUSED static void print_flags(const struct flags *, abi_long, int); UNUSED static void print_at_dirfd(abi_long, int); UNUSED static void print_file_mode(abi_long, int); UNUSED static void print_open_flags(abi_long, int); UNUSED static void print_syscall_prologue(const struct syscallname *); UNUSED static void print_syscall_epilogue(const struct syscallname *); UNUSED static void print_string(abi_long, int); UNUSED static void print_raw_param(const char *, abi_long, int); UNUSED static void print_timeval(abi_ulong, int); UNUSED static void print_number(abi_long, int); /* * Utility functions */ static void print_ipc_cmd(int cmd) { #define output_cmd(val) \ if( cmd == val ) { \ gemu_log(#val); \ return; \ } cmd &= 0xff; /* General IPC commands */ output_cmd( IPC_RMID ); output_cmd( IPC_SET ); output_cmd( IPC_STAT ); output_cmd( IPC_INFO ); /* msgctl() commands */ #ifdef __USER_MISC output_cmd( MSG_STAT ); output_cmd( MSG_INFO ); #endif /* shmctl() commands */ output_cmd( SHM_LOCK ); output_cmd( SHM_UNLOCK ); output_cmd( SHM_STAT ); output_cmd( SHM_INFO ); /* semctl() commands */ output_cmd( GETPID ); output_cmd( GETVAL ); output_cmd( GETALL ); output_cmd( GETNCNT ); output_cmd( GETZCNT ); output_cmd( SETVAL ); output_cmd( SETALL ); output_cmd( SEM_STAT ); output_cmd( SEM_INFO ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); output_cmd( IPC_RMID ); /* Some value we don't recognize */ gemu_log("%d",cmd); } #ifdef TARGET_NR__newselect static void print_fdset(int n, abi_ulong target_fds_addr) { int i; gemu_log("["); if( target_fds_addr ) { abi_long *target_fds; target_fds = lock_user(VERIFY_READ, target_fds_addr, sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1), 1); if (!target_fds) return; for (i=n; i>=0; i--) { if ((tswapl(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1) gemu_log("%d,", i ); } unlock_user(target_fds, target_fds_addr, 0); } gemu_log("]"); } #endif /* * Sysycall specific output functions */ /* select */ #ifdef TARGET_NR__newselect static long newselect_arg1 = 0; static long newselect_arg2 = 0; static long newselect_arg3 = 0; static long newselect_arg4 = 0; static long newselect_arg5 = 0; static void print_newselect(const struct syscallname *name, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6) { gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1); print_fdset(arg1, arg2); gemu_log(","); print_fdset(arg1, arg3); gemu_log(","); print_fdset(arg1, arg4); gemu_log(","); print_timeval(arg5, 1); gemu_log(")"); /* save for use in the return output function below */ newselect_arg1=arg1; newselect_arg2=arg2; newselect_arg3=arg3; newselect_arg4=arg4; newselect_arg5=arg5; } #endif #ifdef TARGET_NR_semctl static void print_semctl(const struct syscallname *name, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6) { gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2); print_ipc_cmd(arg3); gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4); } #endif static void print_execve(const struct syscallname *name, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6) { abi_ulong arg_ptr_addr; char *s; if (!(s = lock_user_string(arg1))) return; gemu_log("%s(\"%s\",{", name->name, s); unlock_user(s, arg1, 0); for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) { abi_ulong *arg_ptr, arg_addr; arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1); if (!arg_ptr) return; arg_addr = tswapl(*arg_ptr); unlock_user(arg_ptr, arg_ptr_addr, 0); if (!arg_addr) break; if ((s = lock_user_string(arg_addr))) { gemu_log("\"%s\",", s); unlock_user(s, arg_addr, 0); } } gemu_log("NULL})"); } #ifdef TARGET_NR_ipc static void print_ipc(const struct syscallname *name, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6) { switch(arg1) { case IPCOP_semctl: gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2); print_ipc_cmd(arg3); gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4); break; default: gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")", name->name, arg1, arg2, arg3, arg4); } } #endif /* * Variants for the return value output function */ static void print_syscall_ret_addr(const struct syscallname *name, abi_long ret) { if( ret == -1 ) { gemu_log(" = -1 errno=%d (%s)\n", errno, target_strerror(errno)); } else { gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret); } } #if 0 /* currently unused */ static void print_syscall_ret_raw(struct syscallname *name, abi_long ret) { gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret); } #endif #ifdef TARGET_NR__newselect static void print_syscall_ret_newselect(const struct syscallname *name, abi_long ret) { gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret); print_fdset(newselect_arg1,newselect_arg2); gemu_log(","); print_fdset(newselect_arg1,newselect_arg3); gemu_log(","); print_fdset(newselect_arg1,newselect_arg4); gemu_log(","); print_timeval(newselect_arg5, 1); gemu_log(")\n"); } #endif UNUSED static struct flags access_flags[] = { FLAG_GENERIC(F_OK), FLAG_GENERIC(R_OK), FLAG_GENERIC(W_OK), FLAG_GENERIC(X_OK), FLAG_END, }; UNUSED static struct flags at_file_flags[] = { #ifdef AT_EACCESS FLAG_GENERIC(AT_EACCESS), #endif #ifdef AT_SYMLINK_NOFOLLOW FLAG_GENERIC(AT_SYMLINK_NOFOLLOW), #endif FLAG_END, }; UNUSED static struct flags unlinkat_flags[] = { #ifdef AT_REMOVEDIR FLAG_GENERIC(AT_REMOVEDIR), #endif FLAG_END, }; UNUSED static struct flags mode_flags[] = { FLAG_GENERIC(S_IFSOCK), FLAG_GENERIC(S_IFLNK), FLAG_GENERIC(S_IFREG), FLAG_GENERIC(S_IFBLK), FLAG_GENERIC(S_IFDIR), FLAG_GENERIC(S_IFCHR), FLAG_GENERIC(S_IFIFO), FLAG_END, }; UNUSED static struct flags open_access_flags[] = { FLAG_TARGET(O_RDONLY), FLAG_TARGET(O_WRONLY), FLAG_TARGET(O_RDWR), FLAG_END, }; UNUSED static struct flags open_flags[] = { FLAG_TARGET(O_APPEND), FLAG_TARGET(O_CREAT), FLAG_TARGET(O_DIRECTORY), FLAG_TARGET(O_EXCL), FLAG_TARGET(O_LARGEFILE), FLAG_TARGET(O_NOCTTY), FLAG_TARGET(O_NOFOLLOW), FLAG_TARGET(O_NONBLOCK), /* also O_NDELAY */ FLAG_TARGET(O_SYNC), FLAG_TARGET(O_TRUNC), #ifdef O_DIRECT FLAG_TARGET(O_DIRECT), #endif FLAG_END, }; UNUSED static struct flags mount_flags[] = { #ifdef MS_BIND FLAG_GENERIC(MS_BIND), #endif #ifdef MS_DIRSYNC FLAG_GENERIC(MS_DIRSYNC), #endif FLAG_GENERIC(MS_MANDLOCK), #ifdef MS_MOVE FLAG_GENERIC(MS_MOVE), #endif FLAG_GENERIC(MS_NOATIME), FLAG_GENERIC(MS_NODEV), FLAG_GENERIC(MS_NODIRATIME), FLAG_GENERIC(MS_NOEXEC), FLAG_GENERIC(MS_NOSUID), FLAG_GENERIC(MS_RDONLY), #ifdef MS_RELATIME FLAG_GENERIC(MS_RELATIME), #endif FLAG_GENERIC(MS_REMOUNT), FLAG_GENERIC(MS_SYNCHRONOUS), FLAG_END, }; UNUSED static struct flags umount2_flags[] = { #ifdef MNT_FORCE FLAG_GENERIC(MNT_FORCE), #endif #ifdef MNT_DETACH FLAG_GENERIC(MNT_DETACH), #endif #ifdef MNT_EXPIRE FLAG_GENERIC(MNT_EXPIRE), #endif FLAG_END, }; UNUSED static struct flags mmap_prot_flags[] = { FLAG_GENERIC(PROT_NONE), FLAG_GENERIC(PROT_EXEC), FLAG_GENERIC(PROT_READ), FLAG_GENERIC(PROT_WRITE), FLAG_END, }; UNUSED static struct flags mmap_flags[] = { FLAG_TARGET(MAP_SHARED), FLAG_TARGET(MAP_PRIVATE), FLAG_TARGET(MAP_ANONYMOUS), FLAG_TARGET(MAP_DENYWRITE), FLAG_TARGET(MAP_FIXED), FLAG_TARGET(MAP_GROWSDOWN), #ifdef MAP_LOCKED FLAG_TARGET(MAP_LOCKED), #endif #ifdef MAP_NONBLOCK FLAG_TARGET(MAP_NONBLOCK), #endif FLAG_TARGET(MAP_NORESERVE), #ifdef MAP_POPULATE FLAG_TARGET(MAP_POPULATE), #endif FLAG_END, }; UNUSED static struct flags fcntl_flags[] = { FLAG_TARGET(F_DUPFD), FLAG_TARGET(F_GETFD), FLAG_TARGET(F_SETFD), FLAG_TARGET(F_GETFL), FLAG_TARGET(F_SETFL), FLAG_TARGET(F_GETLK), FLAG_TARGET(F_SETLK), FLAG_TARGET(F_SETLKW), FLAG_END, }; /* * print_xxx utility functions. These are used to print syscall * parameters in certain format. All of these have parameter * named 'last'. This parameter is used to add comma to output * when last == 0. */ static const char * get_comma(int last) { return ((last) ? "" : ","); } static void print_flags(const struct flags *f, abi_long tflags, int last) { const char *sep = ""; int flags; int n; flags = (int)tswap32(tflags); if ((flags == 0) && (f->f_value == 0)) { gemu_log("%s%s", f->f_string, get_comma(last)); return; } for (n = 0; f->f_string != NULL; f++) { if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) { gemu_log("%s%s", sep, f->f_string); flags &= ~f->f_value; sep = "|"; n++; } } if (n > 0) { /* print rest of the flags as numeric */ if (flags != 0) { gemu_log("%s%#x%s", sep, flags, get_comma(last)); } else { gemu_log("%s", get_comma(last)); } } else { /* no string version of flags found, print them in hex then */ gemu_log("%#x%s", flags, get_comma(last)); } } static void print_at_dirfd(abi_long tdirfd, int last) { int dirfd = tswap32(tdirfd); #ifdef AT_FDCWD if (dirfd == AT_FDCWD) { gemu_log("AT_FDCWD%s", get_comma(last)); return; } #endif gemu_log("%d%s", dirfd, get_comma(last)); } static void print_file_mode(abi_long tmode, int last) { const char *sep = ""; const struct flags *m; mode_t mode = (mode_t)tswap32(tmode); for (m = &mode_flags[0]; m->f_string != NULL; m++) { if ((m->f_value & mode) == m->f_value) { gemu_log("%s%s", m->f_string, sep); sep = "|"; mode &= ~m->f_value; break; } } mode &= ~S_IFMT; /* print rest of the mode as octal */ if (mode != 0) gemu_log("%s%#o", sep, mode); gemu_log("%s", get_comma(last)); } static void print_open_flags(abi_long tflags, int last) { int flags = tswap32(tflags); print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1); flags &= ~TARGET_O_ACCMODE; if (flags == 0) { gemu_log("%s", get_comma(last)); return; } gemu_log("|"); print_flags(open_flags, flags, last); } static void print_syscall_prologue(const struct syscallname *sc) { gemu_log("%s(", sc->name); } /*ARGSUSED*/ static void print_syscall_epilogue(const struct syscallname *sc) { (void)sc; gemu_log(")"); } static void print_string(abi_long addr, int last) { char *s; if ((s = lock_user_string(addr)) != NULL) { gemu_log("\"%s\"%s", s, get_comma(last)); unlock_user(s, addr, 0); } else { /* can't get string out of it, so print it as pointer */ print_pointer(addr, last); } } /* * Prints out raw parameter using given format. Caller needs * to do byte swapping if needed. */ static void print_raw_param(const char *fmt, abi_long param, int last) { char format[64]; (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last)); gemu_log(format, param); } static void print_pointer(abi_long p, int last) { if (p == 0) gemu_log("NULL%s", get_comma(last)); else gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last)); } /* * Reads 32-bit (int) number from guest address space from * address 'addr' and prints it. */ static void print_number(abi_long addr, int last) { if (addr == 0) { gemu_log("NULL%s", get_comma(last)); } else { int num; get_user_s32(num, addr); gemu_log("[%d]%s", num, get_comma(last)); } } static void print_timeval(abi_ulong tv_addr, int last) { if( tv_addr ) { struct target_timeval *tv; tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1); if (!tv) return; gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s", tv->tv_sec, tv->tv_usec, get_comma(last)); unlock_user(tv, tv_addr, 0); } else gemu_log("NULL%s", get_comma(last)); } #undef UNUSED #ifdef TARGET_NR_accept static void print_accept(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_raw_param("%d", tswap32(arg0), 0); print_pointer(arg1, 0); print_number(arg2, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_access static void print_access(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_flags(access_flags, arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_brk static void print_brk(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_pointer(arg0, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_chdir static void print_chdir(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_chmod static void print_chmod(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_file_mode(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_creat static void print_creat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_file_mode(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_execv static void print_execv(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_raw_param("0x" TARGET_ABI_FMT_lx, tswapl(arg1), 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_faccessat static void print_faccessat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_flags(access_flags, arg2, 0); print_flags(at_file_flags, arg3, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_fchmodat static void print_fchmodat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_file_mode(arg2, 0); print_flags(at_file_flags, arg3, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_fchownat static void print_fchownat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); #ifdef USE_UID16 print_raw_param("%d", tswap16(arg2), 0); print_raw_param("%d", tswap16(arg3), 0); #else print_raw_param("%d", tswap32(arg2), 0); print_raw_param("%d", tswap32(arg3), 0); #endif print_flags(at_file_flags, arg4, 1); print_syscall_epilogue(name); } #endif #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64) static void print_fcntl(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_raw_param("%d", tswap32(arg0), 0); print_flags(fcntl_flags, arg1, 0); /* * TODO: check flags and print following argument only * when needed. */ print_pointer(arg2, 1); print_syscall_epilogue(name); } #define print_fcntl64 print_fcntl #endif #ifdef TARGET_NR_futimesat static void print_futimesat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_timeval(arg2, 0); print_timeval(arg2 + sizeof (struct target_timeval), 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_link static void print_link(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_string(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_linkat static void print_linkat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_at_dirfd(arg2, 0); print_string(arg3, 0); print_flags(at_file_flags, arg4, 1); print_syscall_epilogue(name); } #endif #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \ defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) static void print_stat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_pointer(arg1, 1); print_syscall_epilogue(name); } #define print_lstat print_stat #define print_stat64 print_stat #define print_lstat64 print_stat #endif #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) static void print_fstat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_raw_param("%d", tswap32(arg0), 0); print_pointer(arg1, 1); print_syscall_epilogue(name); } #define print_fstat64 print_fstat #endif #ifdef TARGET_NR_mkdir static void print_mkdir(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_file_mode(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_mkdirat static void print_mkdirat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_file_mode(arg2, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_mknod static void print_mknod(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { int hasdev = (tswapl(arg1) & (S_IFCHR|S_IFBLK)); print_syscall_prologue(name); print_string(arg0, 0); print_file_mode(arg1, (hasdev == 0)); if (hasdev) { print_raw_param("makedev(%d", major(tswapl(arg2)), 0); print_raw_param("%d)", minor(tswapl(arg2)), 1); } print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_mknodat static void print_mknodat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { int hasdev = (tswapl(arg2) & (S_IFCHR|S_IFBLK)); print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_file_mode(arg2, (hasdev == 0)); if (hasdev) { print_raw_param("makedev(%d", major(tswapl(arg3)), 0); print_raw_param("%d)", minor(tswapl(arg3)), 1); } print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_mq_open static void print_mq_open(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { int is_creat = (tswapl(arg1) & TARGET_O_CREAT); print_syscall_prologue(name); print_string(arg0, 0); print_open_flags(arg1, (is_creat == 0)); if (is_creat) { print_file_mode(arg2, 0); print_pointer(arg3, 1); } print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_open static void print_open(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { int is_creat = (tswap32(arg1) & TARGET_O_CREAT); print_syscall_prologue(name); print_string(arg0, 0); print_open_flags(arg1, (is_creat == 0)); if (is_creat) print_file_mode(arg2, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_openat static void print_openat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { int is_creat = (tswap32(arg2) & TARGET_O_CREAT); print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_open_flags(arg2, (is_creat == 0)); if (is_creat) print_file_mode(arg3, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_mq_unlink static void print_mq_unlink(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 1); print_syscall_epilogue(name); } #endif #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat) static void print_fstatat64(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_pointer(arg2, 0); print_flags(at_file_flags, arg3, 1); print_syscall_epilogue(name); } #define print_newfstatat print_fstatat64 #endif #ifdef TARGET_NR_readlink static void print_readlink(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_pointer(arg1, 0); print_raw_param("%u", tswapl(arg2), 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_readlinkat static void print_readlinkat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_pointer(arg2, 0); print_raw_param("%u", tswapl(arg3), 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_rename static void print_rename(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_string(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_renameat static void print_renameat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_at_dirfd(arg2, 0); print_string(arg3, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_statfs static void print_statfs(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_pointer(arg1, 1); print_syscall_epilogue(name); } #define print_statfs64 print_statfs #endif #ifdef TARGET_NR_symlink static void print_symlink(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_string(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_symlinkat static void print_symlinkat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_at_dirfd(arg1, 0); print_string(arg2, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_mount static void print_mount(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_string(arg1, 0); print_string(arg2, 0); print_flags(mount_flags, arg3, 0); print_pointer(arg4, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_umount static void print_umount(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_umount2 static void print_umount2(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_flags(umount2_flags, arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_unlink static void print_unlink(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_unlinkat static void print_unlinkat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_flags(unlinkat_flags, arg2, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_utime static void print_utime(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_pointer(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_utimes static void print_utimes(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_string(arg0, 0); print_pointer(arg1, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_utimensat static void print_utimensat(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_at_dirfd(arg0, 0); print_string(arg1, 0); print_pointer(arg2, 0); print_flags(at_file_flags, arg3, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_mmap static void print_mmap(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_pointer(arg0, 0); print_raw_param("%d", tswapl(arg1), 0); print_flags(mmap_prot_flags, arg2, 0); print_flags(mmap_flags, arg3, 0); print_raw_param("%d", tswapl(arg4), 0); print_raw_param("%#x", tswapl(arg5), 1); print_syscall_epilogue(name); } #define print_mmap2 print_mmap #endif #ifdef TARGET_NR_mprotect static void print_mprotect(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_pointer(arg0, 0); print_raw_param("%d", tswapl(arg1), 0); print_flags(mmap_prot_flags, arg2, 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_munmap static void print_munmap(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_pointer(arg0, 0); print_raw_param("%d", tswapl(arg1), 1); print_syscall_epilogue(name); } #endif #ifdef TARGET_NR_futex static void print_futex_op(abi_long tflag, int last) { #define print_op(val) \ if( cmd == val ) { \ gemu_log(#val); \ return; \ } int cmd = (int)tswap32(tflag); #ifdef FUTEX_PRIVATE_FLAG if (cmd & FUTEX_PRIVATE_FLAG) { gemu_log("FUTEX_PRIVATE_FLAG|"); cmd &= ~FUTEX_PRIVATE_FLAG; } #endif print_op(FUTEX_WAIT) print_op(FUTEX_WAKE) print_op(FUTEX_FD) print_op(FUTEX_REQUEUE) print_op(FUTEX_CMP_REQUEUE) print_op(FUTEX_WAKE_OP) print_op(FUTEX_LOCK_PI) print_op(FUTEX_UNLOCK_PI) print_op(FUTEX_TRYLOCK_PI) #ifdef FUTEX_WAIT_BITSET print_op(FUTEX_WAIT_BITSET) #endif #ifdef FUTEX_WAKE_BITSET print_op(FUTEX_WAKE_BITSET) #endif /* unknown values */ gemu_log("%d",cmd); } static void print_futex(const struct syscallname *name, abi_long arg0, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5) { print_syscall_prologue(name); print_pointer(arg0, 0); print_futex_op(arg1, 0); print_raw_param(",%d", tswapl(arg2), 0); print_pointer(arg3, 0); /* struct timespec */ print_pointer(arg4, 0); print_raw_param("%d", tswapl(arg4), 1); print_syscall_epilogue(name); } #endif /* * An array of all of the syscalls we know about */ static const struct syscallname scnames[] = { #include "strace.list" }; static int nsyscalls = ARRAY_SIZE(scnames); /* * The public interface to this module. */ void print_syscall(int num, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6) { int i; const char *format="%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")"; gemu_log("%d ", getpid() ); for(i=0;i<nsyscalls;i++) if( scnames[i].nr == num ) { if( scnames[i].call != NULL ) { scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6); } else { /* XXX: this format system is broken because it uses host types and host pointers for strings */ if( scnames[i].format != NULL ) format = scnames[i].format; gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6); } return; } gemu_log("Unknown syscall %d\n", num); } void print_syscall_ret(int num, abi_long ret) { int i; for(i=0;i<nsyscalls;i++) if( scnames[i].nr == num ) { if( scnames[i].result != NULL ) { scnames[i].result(&scnames[i],ret); } else { if( ret < 0 ) { gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret)); } else { gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret); } } break; } }